The Senate Inquiry into the use and marketing of electronic cigarettes is continuing.

So far the Committee has backed the Therapeutic Goods Administration's decision to ban the sale of liquid nicotine for e-cigarettes in June last year, and the Health Minister Greg Hunt insists the ban won't be reversed on his watch.

However, there are some who claim that legalising e-cigarettes and vaping in Australia could help to reduce the number of people smoking and save lives.

Among them is Clive Bates, the former head of Action on Smoking and Health UK and a leading advocate for e-cigarettes in the UK. He is currently in Australia and will address the Senate Inquiry tomorrow.